We are trying to access NWBC using the following link "http://<host>:<port>/sap/bc/nwbc" . NWBC screen is showing up properly but all the menus are not getting displayed. User is having SAP_ALL and SAP_NEW access.What we also discovered that some of the menus were appearing earlier but now they are gone after restarting the server.for example, sales and distribution and quality management submenus in the below screen-shots. What can go wrong ? Please advice .